mirror of
https://github.com/mozilla/gecko-dev.git
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470 lines
15 KiB
JavaScript
470 lines
15 KiB
JavaScript
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the mozilla.org LDAP RDF datasource.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s): Dan Mosedale <dmose@mozilla.org>
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* Brendan Eich <brendan@mozilla.org>
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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const DEBUG = true;
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// core RDF schema
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//
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const RDF_NAMESPACE_URI = "http://www.w3.org/1999/02/22-rdf-syntax-ns#";
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const NC_NAMESPACE_URI = "http://home.netscape.com/NC-rdf#";
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// RDF-specific success nsresults
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//
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const NS_ERROR_RDF_BASE = 0x804f0000; // XXX is this right?
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const NS_RDF_CURSOR_EMPTY = NS_ERROR_RDF_BASE + 1;
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const NS_RDF_NO_VALUE = NS_ERROR_RDF_BASE + 2;
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const NS_RDF_ASSERTION_ACCEPTED = Components.results.NS_OK;
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const NS_RDF_ASSERTION_REJECTED = NS_ERROR_RDF_BASE + 3;
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// some stuff from ldap.h
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//
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const LDAP_RES_BIND = 0x61;
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// ArrayEnumerator courtesy of Brendan Eich <brendan@mozilla.org>
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//
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function ArrayEnumerator(array) {
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this.array = array;
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this.index = 0;
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}
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ArrayEnumerator.prototype = {
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hasMoreElements: function() { return this.index < this.array.length; },
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getNext: function () { return (this.index < this.array.length) ?
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this.array[this.index++] : null; }
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}
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// the datasource object itself
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//
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const NS_LDAPDATASOURCE_CONTRACTID =
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'@mozilla.org/rdf/datasource;1?name=ldap';
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const NS_LDAPDATASOURCE_CID =
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Components.ID('{8da18684-6486-4a7e-b261-35331f3e7163}');
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function nsLDAPDataSource() {}
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nsLDAPDataSource.prototype = {
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// from nsIRDFRemoteDataSource. right now this is just a dump()
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// to see if it ever even gets used.
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//
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get loaded() { dump("getter for loaded called\n");
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return false; },
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mObserverList: new Array(), // who is watching us; XXX ok to use new Array?
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// RDF property constants.
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//
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// XXXdmose - can these can actually be statics (ie JS class
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// properties rather than JS instance properties)? or would that
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// make it hard for the datasource and/or component to be GCed?
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//
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kRDF_instanceOf: {},
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kNC_child: {},
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// since we implement multiple interfaces, we have to provide QI
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//
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QueryInterface: function(iid) {
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if (!iid.equals(Components.interfaces.nsISupports) &&
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!iid.equals(Components.interfaces.nsIRDFDataSource) &&
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!iid.equals(Components.interfaces.nsIRDFRemoteDataSource) &&
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!iid.equals(Components.interfaces.nsILDAPMessageListener))
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throw Components.results.NS_ERROR_NO_INTERFACE;
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return this;
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},
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/**
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* for nsIRDFRemoteDataSource
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*/
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Init: function(aServer, aPort, aBindname)
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{
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// XXX - if this a "single-connection" datasource; we should figure
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// that out here by noticing that there is a ; after "rdf:ldap", and
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// that after that there is a cookie which happens to be an LDAP URL
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// designating the connection. for now, we just assume that this will
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// be a "universal" datasource.
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// get the RDF service
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//
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var rdfSvc = Components.
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classes["@mozilla.org/rdf/rdf-service;1"].
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getService(Components.interfaces.nsIRDFService);
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// get some RDF Resources that we'll need
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//
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this.kRDF_instanceOf = rdfSvc.GetResource( RDF_NAMESPACE_URI +
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"instanceOf");
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this.kNC_child = rdfSvc.GetResource( NC_NAMESPACE_URI + "child");
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this.kNC_Folder = rdfSvc.GetResource( NC_NAMESPACE_URI + "Folder");
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return;
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},
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/**
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* Add an observer to this data source. If the datasource
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* supports observers, the datasource source should hold a strong
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* reference to the observer. (from nsIRDFDataSource)
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*
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* void AddObserver(in nsIRDFObserver aObserver);
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*/
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AddObserver: function(aObserver) {
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this.mObserverList.push(aObserver);
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},
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/**
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* Query whether an assertion exists in this graph. (from nsIRDFDataSource)
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*
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* boolean HasAssertion(in nsIRDFResource aSource,
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* in nsIRDFResource aProperty,
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* in nsIRDFNode aTarget,
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* in boolean aTruthValue);
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*/
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HasAssertion: function(aSource, aProperty, aTarget, aTruthValue) {
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// figure out what kind of nsIRDFNode aTarget is
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// XXXdmose: code incomplete
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//
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aTarget = aTarget.QueryInterface(Components.interfaces.nsIRDFResource);
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// spew debugging info
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//
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if (DEBUG) {
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dump("HasAssertion() called with args: \n\t" + aSource.Value +
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"\n\t" + aProperty.Value + "\n\t" + aTarget.Value + "\n\t" +
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aTruthValue + "\n\n");
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}
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// the datasource doesn't currently use any sort of containers
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//
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if (aProperty.EqualsNode(this.kRDF_instanceOf)) {
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return false;
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}
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// XXXdmose: real processing should happen here
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//
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var myMessage = aSource.GetDelegate("ldapmessage", Components.
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interfaces.nsILDAPMessage);
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// if we haven't returned true yet, there's nothing here
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//
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return false;
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},
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/**
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* Find a child of that is related to the source by the given arc
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* arc and truth value
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*
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* @return NS_RDF_NO_VALUE if there is no target accessable from the
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* source via the specified property.
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*
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* nsIRDFNode GetTarget(in nsIRDFResource aSource,
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* in nsIRDFResource aProperty,
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* in boolean aTruthValue);
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*/
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GetTarget: function(aSource, aProperty, aTruthValue)
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{
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if (DEBUG) {
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dump("GetTarget() called with args: \n\t" + aSource.Value +
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"\n\t" + aProperty.Value + "\n\t" + aTruthValue + "\n\n");
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}
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Components.returnCode = NS_RDF_NO_VALUE;
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return null;
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},
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/**
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* Find all children of that are related to the source by the given arc
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* arc and truth value.
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*
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* @return NS_OK unless a catastrophic error occurs. If the
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* method returns NS_OK, you may assume that nsISimpleEnumerator points
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* to a valid (but possibly empty) cursor.
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*
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* nsISimpleEnumerator GetTargets(in nsIRDFResource aSource,
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* in nsIRDFResource aProperty,
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* in boolean aTruthValue);
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*/
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GetTargets: function(aSource, aProperty, aTruthValue) {
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function generateGetTargetsBoundCallback() {
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function getTargetsBoundCallback() {}
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getTargetsBoundCallback.prototype.onLDAPMessage =
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function(aMessage, aRetVal) {
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if (DEBUG) {
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dump("boundCallback() called with scope: \n\t" +
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aSource.Value + "\n\t" + aProperty.Value +
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"\n\t" + aTruthValue + "\n");
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dump("\taRetVal = " + aRetVal + "\n\n");
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}
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// XXX how do we deal with this in release builds?
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// XXX deal with already bound case
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//
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if (aRetVal != LDAP_RES_BIND) {
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dump("bind failed\n");
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}
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// kick off a search
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//
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var searchOp = Components.classes[
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"mozilla.network.ldapoperation"].
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createInstance(Components.interfaces.
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nsILDAPOperation);
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// XXX err handling
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searchOp.init(connection,
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generateGetTargetsSearchCallback());
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// XXX err handling (also for url. accessors)
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// XXX constipate this
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// XXX real timeout
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searchOp.searchExt(url.dn, url.scope, url.filter, 0, -1);
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}
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return new getTargetsBoundCallback();
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}
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function generateGetTargetsSearchCallback() {
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function getTargetsSearchCallback() {}
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getTargetsSearchCallback.prototype.onLDAPMessage =
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function(aMessage, aRetVal ) {
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dump("getTargetsSearchCallback() called with aRetVal=" +
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aRetVal + "\n\n");
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}
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return new getTargetsSearchCallback();
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}
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if (DEBUG) {
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dump("GetTargets() called with args: \n\t" + aSource.Value +
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"\n\t" + aProperty.Value + "\n\t" + aTruthValue + "\n\n");
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}
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var url = Components.classes["mozilla.network.ldapurl"]
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.getService(Components.interfaces.nsILDAPURL);
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url.spec = aSource.Value;
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// get a connection object
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//
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var connection = Components.classes
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["mozilla.network.ldapconnection"].createInstance(
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Components.interfaces.nsILDAPConnection);
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connection.init(url.host, url.port, null);
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// get and initialize an operation object
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//
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var operation = Components.classes["mozilla.network.ldapoperation"].
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createInstance(Components.interfaces.
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nsILDAPOperation);
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operation.init(connection, generateGetTargetsBoundCallback());
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// bind to the server. we'll get a callback when this finishes.
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// XXX handle a password
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//
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operation.simpleBind(null);
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return new ArrayEnumerator(new Array());
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},
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/**
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* Get a cursor to iterate over all the arcs that originate in
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* a resource.
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*
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* @return NS_OK unless a catastrophic error occurs. If the method
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* returns NS_OK, you may assume that labels points to a valid (but
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* possible empty) nsISimpleEnumerator object.
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*
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* nsISimpleEnumerator ArcLabelsOut(in nsIRDFResource aSource);
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*/
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ArcLabelsOut: function(aSource)
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{
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if (DEBUG) {
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dump("ArcLabelsOut() called with args: \n\t" + aSource.Value +
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"\n\n");
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}
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return new ArrayEnumerator(new Array());
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}
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}
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// the nsILDAPMessage associated with a given resource
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//
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const NS_LDAPMESSAGERDFDELEGATEFACTORY_CONTRACTID =
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'@mozilla.org/rdf/delegate-factory/message.ldap;1';
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const NS_LDAPMESSAGERDFDELEGATEFACTORY_CID =
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Components.ID('{4b6fb566-1dd2-11b2-a1a9-889a3f852b0b`}');
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function nsLDAPMessageRDFDelegateFactory() {}
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nsLDAPMessageRDFDelegateFactory.prototype =
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{
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mConnection: {}, // connection to the LDAP server
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mOperation: {}, // current LDAP operation
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// from nsIRDFDelegateFactory:
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//
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// Create a delegate for the specified RDF resource.
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//
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// The created delegate should forward AddRef() and Release()
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// calls to the aOuter object.
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//
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// void CreateDelegate(in nsIRDFResource aOuter,
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// in string aKey,
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// in nsIIDRef aIID,
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// [retval, iid_is(aIID)] out nsQIResult aResult);
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CreateDelegate: function (aOuter, aKey, aIID) {
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}
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}
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// the nsILDAPURL associated with a given resource
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//
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const NS_LDAPURLRDFDELEGATEFACTORY_CONTRACTID = '@mozilla.org/rdf/delegate-factory/url.ldap;1';
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const NS_LDAPURLRDFDELEGATEFACTORY_CID =
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Components.ID('b6048700-1dd1-11b2-ae88-a5e18bb1f25e');
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// the nsILDAPConnection associated with a given resource
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//
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const NS_LDAPCONNECTIONRDFDELEGATEFACTORY_CONTRACTID =
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'@mozilla.org/rdf/delegate-factory/connection.ldap;1';
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const NS_LDAPCONNECTIONRDFDELEGATEFACTORY_CID =
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Components.ID('57075fc6-1dd2-11b2-9df5-dbb9111d1b38');
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// nsLDAPDataSource Module (for XPCOM registration)
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//
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var nsLDAPDataSourceModule = {
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registerSelf: function (compMgr, fileSpec, location, type) {
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compMgr.registerComponentWithType(NS_LDAPDATASOURCE_CID,
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'LDAP RDF DataSource',
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NS_LDAPDATASOURCE_CONTRACTID,
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fileSpec, location, true, true,
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type);
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compMgr.registerComponentWithType(
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NS_LDAPMESSAGERDFDELEGATEFACTORY_CID,
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'LDAP Message RDF Delegate',
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NS_LDAPMESSAGERDFDELEGATEFACTORY_CONTRACTID,
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fileSpec, location, true, true,
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type);
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compMgr.registerComponentWithType(NS_LDAPURLRDFDELEGATEFACTORY_CID,
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'LDAP URL RDF Delegate',
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NS_LDAPURLRDFDELEGATEFACTORY_CONTRACTID,
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fileSpec, location, true, true,
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type);
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compMgr.registerComponentWithType(
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NS_LDAPCONNECTIONRDFDELEGATEFACTORY_CID,
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'LDAP Connection RDF Delegate',
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NS_LDAPCONNECTIONRDFDELEGATEFACTORY_CONTRACTID,
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fileSpec, location, true, true,
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type);
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},
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getClassObject: function(compMgr, cid, iid) {
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if (!iid.equals(Components.interfaces.nsIFactory))
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throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
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if (cid.equals(NS_LDAPDATASOURCE_CID))
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return this.nsLDAPDataSourceFactory;
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else if (cid.equals(NS_LDAPMESSAGERDFDELEGATEFACTORY_CID))
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return this.nsLDAPMessageRDFDelegateFactoryFactory;
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else if (cid.equals(NS_LDAPURLRDFDELEGATEFACTORY_CID))
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return this.nsLDAPURLRDFDelegateFactoryFactory;
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else if (cid.equals(NS_LDAPCONNECTIONRDFDELEGATEFACTORY_CID))
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return this.nsLDAPConnectionRDFDelegateFactoryFactory;
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throw Components.results.NS_ERROR_NO_INTERFACE;
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},
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nsLDAPDataSourceFactory: {
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createInstance: function(outer, iid) {
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if (outer != null)
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throw Components.results.NS_ERROR_NO_AGGREGATION;
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return (new nsLDAPDataSource()).QueryInterface(iid);
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}
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},
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nsLDAPMessageRDFDelegateFactoryFactory: {
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createInstance: function(outer, iid) {
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if (outer != null)
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throw Components.results.NS_ERROR_NO_AGGREGATION;
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return (new nsLDAPMessageRDFDelegateFactory()).QueryInterface(iid);
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}
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},
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nsLDAPURLRDFDelegateFactoryFactory: {
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createInstance: function(outer, iid) {
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if (outer != null)
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throw Components.results.NS_ERROR_NO_AGGREGATION;
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return (new nsLDAPURLRDFDelegateFactory()).QueryInterface(iid);
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}
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},
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nsLDAPConnectionRDFDelegateFactoryFactory: {
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createInstance: function(outer, iid) {
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if (outer != null)
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throw Components.results.NS_ERROR_NO_AGGREGATION;
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return
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(new nsLDAPConnectionRDFDelegateFactory()).QueryInterface(iid);
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}
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},
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// because of the way JS components work (the JS garbage-collector
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// keeps track of all the memory refs and won't unload until appropriate)
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// this ends up being a dummy function; it can always return true.
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//
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canUnload: function(compMgr) { return true; }
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};
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function NSGetModule(compMgr, fileSpec) { return nsLDAPDataSourceModule; }
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